Automatic lubricator for solid lubricants.



No. 650,382. Patented May 29, I900.

EKLUND. AUTOMATIC LUBRIGATOR FDR SOLID LUBRICANTS.

(Application filed Oct. 20, 1898.)

(No Model.)

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NITED STATES PATET ISAK ISRAELSON EKLUND, OF STOOKHOLM, SWEDEN, ASSIGNOR TO THE AKTIEBOLAGET LUBRIKATOR, OF SAME PLACE.

AUTOMATIC LUBRiCATOR FOR SOLID LUBRICANTS.

SPECIFICATION forming art of Letters Patent No. 650,382, dated May 29, 1900.

' Application filed October 20, 1898. Serial No. 694,125. (No model.)

ment in automatic lubricators for solid lubricants, in whichthe driving means consists of an oscillating lever or a reciprocating part which cooperates with a mechanism in such a manner as to screw down a piston in a cylinder containing the lubricant. In lubricators of this kind heretofore used the lever is generally provided with a concentricallyjonrnaled roller acting to alternately raise and lower the lever by rolling on a revolving shaft provided with a cam or projecting lug. Such a construction, however, suifers from the disadvantage that the motion can be regulated only by adjusting the roller to a greater or smaller distance from the fulcrum of the lever, which adjustment also necessitates adj usting of the cam or lug by moving it sidewise, an operation which is troublesome. Another disadvantage is the noise occasioned by the lug striking against the roller.

The present invention has for its object to produce a lubricator which admits of regulating in a more simple manner the quantity of lubricant forced out and is less noisy than the older devices of the same class.

The invention consists in dispensing with the cam or lug and instead thereof journaling the roller eccentrically and so that its axis of rotation can be adjusted to different distances from the center of the said roller.

In the accompanying drawings, Figure 1 is a side elevation of an improved lubricator constructed in accordance with this invention, and Fig. 2 is another side elevation at ninety degrees to that in Fig. 1.

Referring to the drawings, 61 represents a lever adapted to oscillate on the shaft h and resting by means of an eccentrically-j ournaled roller 6 on some movable part of the machinery-J01 instance, a rotating shaft, into the journal-box of which the bottom piece 0 is screwedso that the lever d, owing to the eccentric journaling of the roll, is given an oscillating movement, when the roller 6, by means of the friction between the same and the revolving shaft, is caused to revolve. In this movement the lever d, by means of a pawl f, communicates motion to a ratchetwheel g, fixed to the aforesaid shaft h, thereby revolving a crank-pin h, attached to the end of the shaft 72., to which crank-pin is jointed one end of a link '11, the other end of which is connected to the one arm is of a twoarmed lever k, fulcrumed on a fixed pin a or the like. The other arm 70 of said lever carries a pawl Z, engaging with another ratchet-wheel 'm, which is slidably mounted on a piston-rod b. The said ratchet-wheel m is provided with one or more lugs or projections,which engage with a longitudinalfgroove b in the piston-rod, which is threaded and can screw into a correspondingly-threaded opening or nut in the cover of the grease-cup, the piston-rod being consequently revolved by the last mentioned ratchet and slides through the hole in the ratchet, so that the piston 1) moves into the cylinder, forcing out the lubricant through a passage in the bottom piece attached to the cup.

In the present form of carrying out my invention the roller e is provided with a radial slot 6'. To the free end of the lever d is fastened a pin d, on which is journaled a box 6 which is fastened to a sliding piece 6 adapted to slide in the said slot e in such a manner that the roller may be journaled more or less eccentrically. A screw e moving in another slot e serves to secure the sliding piece in the desired place.

The working of the apparatus is obvious. When the roller 6 rests on a revolving shaft, the friction between the roller and the shaft will cause the roller to revolve around its journal-pin. Owing to the eccentric journaling of the roller the same will thus give an oscillating movement to the lever, and thus cause the lubricant to be fed out into the journal-box of the shaft giving motion to the roller. By changing the eccentricity of the roller the feed of the grease may be adjusted as needed.

The means for adjusting the eccentricity of the roller may of course be varied in many ways without departing from the spirit of this invention. The invention is therefore not limited to the particular form of carrying out the same which has now been described and shown. v

Having now described my invention and how it may be carried out, what I claim, and desire-to secure by Letters Patent, is

1. In automatic lubricating devices for solid lubricants the combination with the greasecup, of a frame or lever hinged to the greasecup, an eccentrically-supported roller on the free end of said lever, a pawl attached to said lever, a spur-wheel with which said pawl engages, a crank-pin fixed at the end of the axle of said spur-wheel, a double-armed lever attached to the said crank-pin, a second pawl carried by the free arm of said double-armed lever, a piston-rod screwed through the cover of said grease-cup and provided with a longitudinal groove, and a ratchet-Wheel slidably mounted on said piston-rod and engaging with said groove and second pawl, substantially as and for the purpose set forth.

2. In automatic lubricating devices for solid lubricants the combination with the greasecup, of a frame or lever hinged to the greasecup, a pin fastened to the free end of said lever, a box journaled on said pin, a sliding piece fastened to said box, a roller havinga slot in which said sliding piece is adjustably fixed, a pawl attached to said lever, a spur- Wheel with which said pawl engages, a crankpin fixed at the end of the axle of said spur- Wheel, a double-armed lever attached to the said crank-pin, a second pawl carried by the free arm of said double-armed lever, a pistonrod screwed through the cover of said greasecup and provided with a longitudinal groove, and a ratchet-wheel slidably mounted on said pistonrod and engaging with said groove and second pawl, substantially as and for the purpose set forth. r

In witness whereof I have hereunto set my hand in presence of two witnesses.

ISAK ISRAELSON EKLUND.

Witnesses:

AUG. SORONSON, A. T. LARNsTRo 

